import {Image, InfiniteScroll, List} from 'antd-mobile'
// mock数据
// import {users} from './users'
import {useEffect, useState} from "react";
import {fetchGetListAPI, ListRes} from "@/apis/list.ts";
import {useNavigate} from "react-router-dom";

type Props = {
    channelId: string
}

const HomeList = (props: Props) => {
    const {channelId} = props

    // 获取列表数据
    const [listRes, setListRes] = useState<ListRes>({
        results: [],
        pre_timestamp: "" + new Date().getTime(),
    })

    useEffect(() => {
        const getList = async () => {
            try {
                const res = await fetchGetListAPI({
                    channel_id: channelId,
                    timestamp: "" + new Date().getTime(),
                });
                setListRes({
                    results: res.data.data.results,
                    pre_timestamp: res.data.data.pre_timestamp,
                })
            } catch (error) {
                throw new Error("fetch getList error")
            }
        }
        getList()
    }, [channelId]);

    // 无限滚动
    // 开关，标记当前是否还有新数据
    // 上拉加载触发的必要条件：1.hasMore = true 2.小于 threshold 阈值
    const [hasMore, setHasMore] = useState(true)
    // 加载新数据的函数
    const loadMore = async () => {
        // 核心逻辑
        console.log("上拉加载触发了...")
        try {
            const res = await fetchGetListAPI({
                channel_id: channelId,
                timestamp: listRes.pre_timestamp,
            });
            // 拼接新数据 + 存取下一次请求的事件戳
            setListRes({
                results: [...listRes.results, ...res.data.data.results],
                pre_timestamp: res.data.data.pre_timestamp,
            })
            // 停止监听
            if (res.data.data.results.length === 0) {
                setHasMore(false)
            }
        } catch (error) {
            throw new Error("fetch getList error")
        }
    }

    // 点击路由跳转
    const navigate = useNavigate();

    function goToDetail(id: string) {
        navigate(`/detail?id=${id}`)
    }

    return (
        <>
            <List>
                {listRes.results.map((item) => (
                    <List.Item
                        onClick={() => goToDetail(item.art_id)}
                        key={item.art_id}
                        prefix={
                            <Image
                                src={item.cover.images?.[0]}
                                style={{borderRadius: 20}}
                                fit="cover"
                                width={40}
                                height={40}
                            />
                        }
                        description={item.pubdate}
                    >
                        {item.title}
                    </List.Item>
                ))}
            </List>
            <InfiniteScroll loadMore={loadMore} hasMore={hasMore} threshold={10}/>
        </>
    )
}

export default HomeList